Lock.



E. G. ELDHDGE.

LUCK.

APPLICATION FiLED 0CT.251916.

s. G. ELnRmGE.

LOCK.

APPLlcATmN FILED ocT.25. i916.

Patented Das., 25, 19N.

2 SHEETS-SHEET 2.

ERNEST GARFIELD ELDRIDGE, OF ALHAMBRA, CALIFORNIA.

LOCK.

specification of Lettersrate'nt.

Patented Dec. 25, 1917.

Application faed october 25,1916. serial No. 127,587.

To all/whom 1f/may concern:

Be it known that I, ERNEST GARFIELD EL- Dnmcn, a citizen of the United-States, residing at Alhambra, in the county of Los Angeles, State of California, have invented new and useful Improvements in Locks, of which the following is a specification.

This invention relates to combination locks; and it is a general object of this invention to provide a simple and effective lock adaptable to various uses. There are many specific objectsv of my invention; and these will appear from the features of my invention explained in the following specification. But I mayl particularly here state that one of the obj ects of this invention is to provide a combination or permutation lock provided with both a dead bolt and a spring latch in a single operative mechanism, the dead bolt and spring latch being both actuated by Vone and the same actuating mechanism. Broadly considered, the mechanism of my lock includes a combination or permutation-mechanism, preferably in the form of notched disks, and a bolt and spring latch tumbler, also preferably in the form of a disk. Arrangementsv are made so that the spring latch may be operated by simple rotation of the spring latch tumbler, while the dead bolt may be shot by operation of the spring latch tumbler (under certain particular conditions, as hereinafter explained) but the dead bolt can only be retracted by thecoperative action of all the combination tumblers and the spring latch tumbler.

Besides the arrangement just described, there areother arrangements and combinations of parts adapting the lock to such use as for a residence door or the like. For instance, arrangement is made so that the dead bolt may be shot or retracted from the inside of the door without any manipulation of theY combination. These features of my invention, together with many others, are explained in the following specification, wherein I describe in detail a preferred form of lock embodying my invention. Reference is had to the accompanying drawings illustrating said preferred form of lock; in which drawings, Figure 1 is an interior view of the lock showing both the dead bolt and spring latchin their shot positions; Fig. 2 is a 'similar view showing both dead bolt and spring' latch retracted; Fig. 3 is a relatively enlarged view showing the dead bolt and the tumblers in normal position; Fig. 4 is a blers and illustrating their method of operation; and Fig. 10 is a section on line 10#10 on Fig. 9. l

In the drawings the numeral l0 designates any suitable lock case in which I mount a spring latch 11 and a dead bolt 12. dead bolt 12 has a shank 13 extending back into the case; and certain mechanisms are mounted upon this shank for the purpose This V of cooperating with the latch tumbler 14 and .Y

the combination tumblers 15, lwhich maybe of any suitable number. The latch tumbler is provided with one large notch 16 and a number of smaller notches 17; while the combination tumblers 15 are each provided with a notch 18 similar to the notch 16 in theV latch tumblerf The combination tumblers are mounted upon a sleeve 19 through which the square knob shaft 20 extends; while the latch tumbler 14 is mounted Adirectly upon, and always turned with, the Y square knob shaft 20. Suitable knobs may be provided inside and outside, in any of the usual manners; and the exterior knob may be provided with a dial or clicking device, or anything of like nature to indicate positions. The fact that there is only one knob shaft makes my lock easy of adaptation to dierent doors; the lock being merely turned upside down for right and leftV hand doors, and the level of the latch bolt being reversed for inside and outside opening doors. The combination tumblers 15 are operated from the sleeve 19 in any suitable manner; the object of their manipulation being toline up all the notches 18 in line with the position shown for notch 16 in Fig. 6.

Due to the fact that there are many methods and mechanisms by which the tumblers 15 may be manipulated, I only describe the following as typical. For instance, the tumbler 1st will always turn with the knot shaft 20. Tumblers 15 are rotatively mount- `l ed on sleeve 1 9, and this sleeve may turn with the shaft 20. The sleeve 19 may have a lug 19a to strike a pin 15l on the inside tumbler 15. Each tumbler may then have an annular groove 15b into which a pin 15a of an adjacent tumbler' projects; a lug 15c in each groove striking the pin and causing motion to be transmitted' from one tumbler to another. In this manner the tumblers 15 may be manipulated so as to line up all their notches 18, and the tumbler 14 may then be manipulated to line up its notch 1G with thev notches 18. Thus, in a sense, the tumbler 14 is a part of the permutation mechanismits notch must be lined up with the others in order to operate the lock-; but, at the Same time, the tumbler 14 capable of being turned independently of the turning` and operation of the tumblers 15; and the operation of this tumbler 14, without necessarily operating the tumblers 15, causes certain actions in the lock as hereinafter described.

The dead bolt is preferably arranged at one side of the tumblers and the spring latch at the other side. The operation of a spring latch will be first described.

Spring latch 11 is mounted upon a shank having at its end a head 26 running between guides 27 on the case. A spring 28 is confined between boss 29 at the head of the spring latch and a loose washer 30 at the rear end of shank 25. The end 31 of an operating arm 32 engages between washer 30 and head 26. The upper end 33 of this operating arm is adapted to engage in any one of the notches 17. When the parts are in the position shown in Fig. 1, the spring latch is thrown outwardly and held outwardly by the spring- 28. To retract the spring latch it is only necessary to rotate the knob shaft 2O and the tumbler 14 in the direction indicated in Fig. 1. The lirst notch 17 approaching the end 33 of arm 32 catches that end of the arm and throws the arm over to the position shown in Fig. 2, retracting the spring latch. The spring latch will remain retracted until shaft 20 and tumbler 14 are rotated in the direction indicated in Fig. 2; when the spring latch will again be moved outwardly and will then opcrate as an ordinary spring latch, being yieldingly held out by the action of spring 28. It is to be noted that the spring latch may be operated in this manner merely by proper rotation of shaft 20, regardless of the position or condition of any of the mechanisms of the lock; and it will be hereinafter noted that the same rotation, in the direction indicated in Fig. 1, which is used to retract the dead bolt, also retracts the spring latch at the same time.

1 now explain the mechanism of the dead bolt and its operation. ln the dead bolt itself 1 place a button 35 whose two positions are shown in Figs. 4, 5 and 6. This button is provided with a spring 36 having a hump 37 adapted to engage on either side of a pin 38 on shank 13 of the dead bolt. A pin 39 is mounted upon the member 40 and enters a bore 41 in the button 35; and a compression spring 42 is confined between member and button 35. Vhen the button is pushed in to the position shown in Fig. 4, the hump 37 will pass over to the rear of pin 38; and this engagement of hump 37 with the pin 38 is suflicient to hold the spring 42 compresed as shown in Fig. 4. Member 40 connects at the pin 43 with lever 44 pivoted at 45 to shank 13. The lower end of lever 44 is connected by connecting rod 46 with pin 47 on the upper end of the locking dog 48. This locking dog is pivoted at 49 to the shank 13 and has a tumbler engaging part 50 projecting therefrom and of a size adapted to enter the small notches 17 in tumbler 14. The normal positions of the parts are shown in Fig. 3; and in this position the part 50 of the dog 48 just rides upon or clears the periphery of the tumblers. When the button 35 is pushed in to the position shown in Fig. 4, then the spring 42 is compressed and tends to throw the dog 48 around in the direction indicated by the arrow; and when the tumbler 14 is rotated so as to bring a notch 17 beneath the part 50 of dog 48, then the spring 42 expands and throws the dog into the notch 17, as shown in Fig. lVhen this has taken place, then a rotation of tumbler 14 in the direction indicated by the arrow in Fig. 5 will move the dead bolt 12 bodily forward toward and to the position shown in Fig. G. Having moved the dead bolt until the flange 12:L engages plate 10a of the lock case, then further movement of the end 50 of dog` 48 to the right causes movement of all the parts described toward the position shown in Fig. 6; causing the hump 37 to spring over the pin 38, causing the button 35 to snap forward to the position sho-wn in Fig. G and allowing the dog 48 to then be relieved of the pressure of spring 42 (which pressure tends to throw the dog around in the direction indicated in Figs. 3, 4 and 5) and causing the dog 48 to be thrown back to the position shown in Fig. 6. In this position the pin 47 at the upper end of the dog drops into a. notch in a ledge 61 projecting from the interior of case y10; and the engagement of this pin in this notch holds the dead bolt against being pushed back, or accidentally jarred back; Before the dead bolt is retracted, the pin 47 is raised out of the notch 60, by an operation hereinafter described.

The unlocking dog 65 is pivoted at 66 on shank 13 of the dead bolt and has a spring G7 tending to throw it around in the direction indicated, throwing its extended end 68 down toward the tumblers, and down against the tumblers when the parts are in the position shown in Fig. 6. lVhen the parts are in normal position the spring actuated movement of the locking dog 65 is limited by a pin 69 set in the case; the normal position of the dog being such that when the dead bolt is moved out, the engagement of the end 68 of ldog 65 with the peripheries of the tumblers will tend to raise the dog and cause its end to ride over the tumblers toward the position shown in Fig. 6. In Fig. 6 I illustrate the dog when it has dropped down into, or is dropping down into, the notches 16 and 18. Of course, it will be readily seen that the dog cannot drop down into these notches until all three notches 18 in the combination tumblers and the notch 16 in the spring latch tumblers, have all been lined up in theposition indicated in Fig. 6. lVhen this has taken place, then a rotation of the tumbler 14 in the direction indicated, will cause the end 68 of dog 65 to be caught by notch 16, `and further rotation of the tumbler 14 will move the dog 16, and with it the shank 13, back toward and to the position shown in Fig. y3. During the firstpart of the movementof the tumbler as indicated, the first movement of dog 65 is to turn about its pivot 66, in the direction indicated, while the end-68 of the` dog is entering fully into the notches 16 and 18. This movement is about to take place when the position shown in4 Fig. 6 is reached.

This movement of dog 65 moves a cam 70 l (which is part of theA dog) against a cam surface 71 on dog 48; and the action of these 4two cam surfaces is to throw the dog 48 upwardly from the position shown in Fig. 6, toward the relative position shown in Fig. 3, raising the pin 47 out ofl notch 60. This having been done, and the dog 65 fully engaged in notch 16, the rotation of tumbler 14 in the direction indicated in Fig. 5 will throw all the parts back to the position shown in Fig. 3. In the positionshown in Fig. 3 the pin 47 rides upon the unnotched portion of ledge 61, and the dog 48 is prevented from dropping-back in the direction opposite to that indicated by the arrow in Fig. 3 and prevented from dropping back under the cam 70. As the dog moves back to its position shown in Fig. 3, it again engages the pin 69 and is held inthe relative angular position shown in that figure. vWhile the dog is engaged in notch 16, it may have been carried down to a lower relative position than that shown in Fig. 3; but engagement with the pin 69, at the end of the movement causes the dog toy take its proper normal position, liereinbefore explained. The parts now being all in their normal positions, the operation of locking may be repeated.

It will be noted that rotation of tumbler 14 in the direction indicated in Figs. 1 and 6 is necessary to retract the dead bolt; and

f it has hereinbefore been explained how this lonly engage tumbler 14; the result being, y as hereinbefore described, that independent operation of tumbler 14 will throw the bolt out, while it is necessary to coperatively manipulate all of the combination and latch tumblers to retract the bolt.

I provide a yoke arm 8O which engages' pin 43 onthe .upper end of lever 44; This yoke arm is mounted upon and manipulated .through the medium of a small knob shaft .81, operatedvby any suitable knob or the like, at the inside of the lock. (In Fig. 7 the inside of the lock is at the left.) Turning of the knob shaft 81 in one direction will move the dead bolt out and move the parts to the position shown in Fig. 6; the y operation merely exerting a pressure upon the pin 43 in the direction indicatedby the arrow in Fig. 6. Pin 43 extends through shank 13 through notch 43a; and this notch positively limits the movement of the pin relative to the shank independently of the actionof spring 42. Reverse rotation of knob shaft 81 will move the ,pin 43 in the l,

opposite direction; and in moving the pin in the opposite direction, the `rst effect will vloe to raise pin 47 out of notch 60 and then the effect will be, after throwingy pinv 43 back to the back end of notch 43a, to retract the dead bolt. By this means the dead boltV may be manipulated through themedium of knob shaft 81 from the inside of the lock without any manipulationv of the tumblers 14 Or 15.

It will now be seen how I provide combination lock in which both the springv latch and dead bolt are controlled and actuated by a single set of combination tumblers5and 1110 how a single set of operations suffices to op.- y

erate either the dead bolt or spring latch Y or both. I do not limit my invention .to-

the particular and specific details herein set forth, as these may be advantageously varied; but rather Ido consider my invention to broadly vinclude variations, changes y and adaptations by, which the same effects are had, as herein set forth. u v A feature to which I may particularly call attention is that thevdead bolt is moved through the agency of two means-thelocking dog and the unlocking y dogwhich Y means are preferably independent 'of each other. Providing two such means, and mak- Vias ing them normally out of operative relation to the operating tumbler, has the result that the tumblers of the permutation mechanism may be changed in position to change theV Y.

combination without the employment of some means for holding up the dogs. The provision of two such means, preferably independent, also makes i'or simplicity and positiveness of action.

Having described a preferred Jform of my invention, I claim:

l. A lock, embodying a permutation mechanism, a bolt controlled thereby, a tumbler adapted to more the bolt under control ot' the permutation mechanism, said tumbler being movable independently of the permutation mechanism, and a latch operatable by the tumbler.

2. A lock, embodying a permutation mechanism, a bolt whose retraction is controlled thereby, a tumbler adapted to throw the bolt out and to retract the bolt under control ot' the permutation mechanism, said tumbler' being movable independently ot the permutation mechanism, and a latch operatable by the tumbler.

3. A lock, embodying a permutation mechanism and a tumbler cooperating therewith, a bolt and mechanism whereby the bolt is l operated by the permutation mechanism and the tumbler, said tumbler being movable independently of the permutation mechanism, and a latch and mechanism whereby the latch is operated by the tumbler.

4l. A lock, embodying a permutation mechanism and a tumbler coperating therewith, a bolt, a latch, means connected with the bolt adapted to engage the permutation mechanism and the tumbler and whereby the bolt may be retracted by movement of the tumbler, means connected with bolt adapted to engage the tumbler whereby the bolt may be thrown out by movement of the tumbler, said tumbler being movable independently of the permutation mechanism, and means connected with the latch whereby the latch may be operated by movement ot' the tumbler.

5. A lock, embodying a plurality of coinbination tumbler disks with notches adapted to be alined, a latch tumblerl disk with a notch adapted to aline with the other notches, a bolt, a dog on the bolt adapted to engage the latch tumbler, and a latch operated by the latch tumbler.

6. A lock, embodying a permutation mechanism and a tumbler cooperating therewith, a bolt, a latch, means connected with the bolt adapted to engage the permutation mechanism and the tumbler and whereby the bolt may be retracted by movement ot' the tumbler', means connected with bolt adapted to engage the tumbler whereby the bolt may be thrown out by movement oll the tumbler, manually operatable means for throwing said last mentioned means to position to engage the tumbler, and means connected with the latch whereby the latch may be operated by movement of the tumbler.

7. A lock, embodying a plurality of combination tumbler disks with notches adapted to be alined, a latch tumbler disk with a notch adapted to aline with the other notches, a bolt, a dog on the bolt adapted to engage all the tumblers, a dog on the bolt adapted to engage the latch tumbler, manually operatable means for throwing the last mentioned dog to position to engage the latch tumbler', and a latch operated by the latch tumbler.

8. A lock, embodying a plurality of combination tumblers with notches adapted to be alined, a latch tumbler with a notch adapted to aline with the other notches, a bolt, a dog on the bolt adapted to engage in the notches of all the tumblers, a dog on the bolt adapted to engage the latch tumbler, and a latch operated by the latch tumbler.

9. A lock, embodying a plurality of combination disk tumblers with notches adapted to be alined, a disk latch tumbler with a notch adapted to be alined with the other notches and with a plurality of smaller notches spaced around its periphery, a bolt and a latch, a large ended dog connected with the bolt and adapted to engage in the alined notches of all the tumblers, a small ended dog connected with the bolt and adapted to engage in the smaller notches ot' the latch tumbler, and operating means connected with the latch and adapted to engage in the smaller notches of the latch tumbler.

l0. A lock, embodying a plurality of combination disk tumblers with notches adapted to be alined, a, disk latch tumbler with a notch adapted to be alined with the other notches and with a plurality of smaller notches spaced around its periphery, a bolt and a latch, a large ended dog connected with the bolt and adapted to engage in the alined notches of all the tumblers, a small ended dog connected with the bolt and adapted to engage in the smaller not-ches o'l" the latch tumbler, manually operatable means to move the small ende-d dog to position vto engage the latch tumbler, and operating means connected with the latch and adapted to engage in the smaller notches of the latch tumbler.

ll. A lock, embodying a plurality of combination disk tumblers with notches adapted to be alined, a disk latch tumbler with a notch adapted to be alined with the other notches and with a plurality of smaller notches spaced around its periphery, a sliding bolt, a sliding' latch, a large ended dog mounted on the bolt and adapted to engage in the alined notches of the tumblers, a small ended dog mounted on the bolt and adapted to engage the notches of the latch tumbler, manually operatable means carried by the bolt adapted to throw the last mentioned dog to position to engage the latch tumbler, and

los

means connected with the latch adapted to engage in the notches of the latch tumbler.

12. A lock, embodying a plurality of combination disk tumblers with notches adapted to be alined, a disk latch tumbler with a notch adapted to be alined with the other notches and with a plurality of smaller notches spaced around its periphery, a sliding bolt and a sliding latch, ardog on the bolt adapted to engage in the alined notches of the tumblers whereby the bolt may be retracted by movement of the tumblers, a dog on the bolt adapted to engage in the notches of the latch tumbler whereby the bolt may be thrown out, means coperating with said last mentioned dog to render the bolt dead when out, and means for operating the latch by movement of the latch tumbler.

13. A lock, embodying a plurality of combination disk tumblers with notches adapted to be alined, a disk latch tumbler with a notch adapted to be alined with the other notches and with a plurality of smaller notches spaced around its periphery, a sliding bolt and a sliding latch, a dog on the bolt adapted to engage in the alined notches of the tumblers whereby the bolt may be retracted by movement of the tumblers, a dog on the bolt adapted to engage in the notches of the latch tumbler whereby the bolt may be thrown out, manually operatable means to throw the last mentioned dog to position to engage the latch t-umbler, means coperating with said last mentioned dog to render the bolt dead when out, and means for operating the latch by movement of the latch tumbler.

14. A lock, embodying a plurality of combination disk tumblers with notches adapted to be alined, a disk latch tumbler with a notch adapted to be alined with the other notches and with a plurality of smaller notches spaced around its periphery, a sliding bolt and a sliding latch, a dogl on the bolt adapted to engage in the alined notches of the tumblers whereby the bolt may be retracted by movement oi thetumblers, a dog on the bolt adapted to engage in the notches of the latch tumbler whereby the bolt may be thrown out, manually operatable means carried by the bolt to throw the last mentioned dog to position to engage the latch tumbler, means coperating with said last mentioned dog to render the bolt dead when out, and means for operating the latch by movement of the latch tumbler.

15. A lock, embodying a permutation mechanism, a tumbler and a tumbler operating means through the medium of which the permutation mechanism is operated, a bolt, bolt moving means under control of the permutation mechanism and operated by the tumbler, and a latch operatable by the tumbler.

which the permutation mechanism is operated, a bolt, means operated by the tumbler independently of the permutation mechanism to move the bolt out, and means controlled by the permutation mechanism I and operated by the tumbler to retract the bolt.

17. A lock, embodying a permutation mechanism and a tumbler, the tumbler being movable independently of the permutation mechanism, a bolt, means operated by the tumbler to move the bolt out, and means controlled by the permutation mechanism and operated by the tumbler to retract the bolt.

18. A lock. embodying a permutation mechanism, and a tumbler movable independently of the permutation mechanism, a bolt, a latch, means whereby the latch is operated exclusively by the tumbler, and means whereby the bolt is operated by the tumbler under control of the permutation mechanism.

19. A lock, embodying a permutation mechanism and a. tumbler, a bolt, means opera-table by the tumbler to throw the bolt out, and another means controlled by the permutation mechanism and operated by the tumbler to retract the. holt.

20. A lock, embodying a permutation mechanism and a tumbler, a bolt, means operatable exclusively by the tumbler to throw the bolt out, and another means controlled by the permutation mechanism and operated by the tumbler to retract the bolt.

21. A lock, embodying a permutation mechanism and a tumbler, a bolt, manually controllable means operatable by the tumbler to throw the bolt out, and another means controlled by the permutation mechanism and operated by the tumbler to retract the bolt.

22. A lock, embodying a permutation mechanism and a tumbler, a bolt, means normally out of operative relation to the tumbler, and operatable by the tumbler to throw the bolt out, and means normally out of operative relation to the tumbler, controlled by the permutation mechanism gud operatable by the tumbler to retract the olt.

23. A lock, embodying a permutation mechanism and a tumbler, a bolt. manually controllable means normally out of operative relation to the tumbler and operatable by the tumbler to throw the bolt out, and means normally out oi" operative relation to the tumbler, controlled by the permutation mechanism and operatable by the tumbler to retract the bolt.

24. A lock, embodying a permutation mChHlSm and a tumbler, a bolt, a locking 130 dog on the bolt normally out of operative relation to the tumbler, manually operatable means to throw the locking dog into operative relation to the tumbler, and an unlocking dog on the bolt adapted to engage the tumbler under control of the permutation mechanism.

25. A lock, embodying a permutation mechanism and tumbler, a bolt, a locking dog on the bolt normally out of operative relation to the tumbler, manually operatable means to throw the locking dog into operative relation to the tumbler, an unlocking dog on the bolt adapt-ed to engage the tumbler under control of the permutation mechanism, and means to normally throw the unlocking dog out of operative relation to the tumbler.

26. A lock, embodying a permutation mechanism and a tumbler, a bolt, a locking dog on the bolt normally out of operative relation to the tumbler, said dog being engageable exclusively with the tumbler for locking movement of the bolt by virtue of movement of the tumbler, manually operatable means to throw the locking dog into operative relation to the tumbler, and an unlocking dog on the bolt adapted to engage the tumbler under control of the permutation mechanism.

27. A lock, embodying a permutation mechanism and a tumbler, a bolt, means operatable by the tumbler to throw the bolt out, and another means controlled by the permutation mechanism and operated by the tumbler to retract the bolt, and dead locking means for the bolt releasable by action of the bolt retracting means.

28. A lock, embodying a permutation mechanism and a tumbler, a bolt, a locking dog on the bolt normally out of operative relation to the tumbler, manually operatable means to throw the locking dog into operative rela-tion to the tumbler, and an unlocking dog on the bolt adapted to engage the tumbler under control of the permutat-ion mechanism, and dead locking means for the bolt releasable by action of the unlocking dog.

29. A lock, embodying a permutation mechanism and a tumbler', a bolt, means operatable by the tumbler to throw the bolt out, another means controlled by the permutation mechanism and operatable by the tumbler to retract the bolt, and a latch operatable by the tumbler.

30. A lock, embodying a permutation mechanism and a tumbler, a bolt, manually controllable means operatable exclusively by the tumbler to throw the bolt out, another means controlled by the permutation mechanism and operatable by the tumbler to retract the bolt, and a latch operata-ble exclusively by the tumbler.

31. A lock, embodying a permutation operative relation to the tumbler controlled .l

by the permutation mechanism and operatable by the tumbler to retract the bolt, and a latch operatable by the tumbler.

32. A lock, embodying a combination tumbler and a latch tumbler' cooperating' therewith, a bolt, operating means for the bolt adapted to engage all the tumblers, a latch, and operating means for the latch engaging the latch tumbler.

33. A lock, embodying combination tumbler and a latch tumbler coperating therewith, a bolt, unlocking` means for the bolt adapted to engage all the tumblers, a latch, and operating means for the latch engaging the latch tumbler exclusively.

34. A lock, embodying a combination tumbler and a latch tumbler cooperating therewith, a bolt, unlocking means for the bolt adapted to engage all the tumblers, locking means for the bolt adapted to engage the latch tumbler exclusively, a latch, and operating means for the latch engaging the latch tumbler exclusively.

35. A lock, embodying in combination a combination tumbler and a latch tumbler cooperating therewith, a means whereby the latch tumbler is directly manually movable and the combination tumbler being moved through the medium of said means, a. bolt, operating means for the bolt adapted to engage all the tumblers, a latch, and operating means for the latch engaging the latch tumbler.

36. A lock, embodying in combination a combination tumbler and a latch tumbler cooperating therewith, a means whereby the latch tumbler is directly manually movable and the combination tumbler being moved through the medium of said means, a bolt, unlocking means for the bolt adapted to engage all the tumblers, locking means for the bolt adapted to engage the latch tumbler exclusively, a latch, and operating means for the latch engaging thelatch tumbler. y

37. A lock, embodying in combination a plurality of substantially similar coperating tumblers, a means whereby one of said tumblers is directly manually operatable and the others being operatable through the medium of said means, a bolt, locking means for the bolt adapted to engage the manually operated tumbler, and unlocking means for the bolt adapted to engage all the tumblers.

38. A lock, embodying in combination a plurality of substantially similar coperating tumblers, a means whereby one of said tumblers is directly manually operatable and the others being operatable through the medium of said means, a bolt, a locking dog on the bolt manually engageable with said manually operatable tumbler exclusively, and an unlocking dog on the bolt eugageable with all the tumblcrs.

39. A lock, embodying in combination a plurality of substantially similar coperating tiunblers, a means whereby one of said tumblers is directly manually cberatable and the others being operatable through the medium of said means, a bolt, a locking dog on the bolt manually engageable with said manually operatable tumbler exclusively, an unlocking dog on the bolt engageable with all the tumblers, a latch, and latch operating means engageable with the manually operatable tumbler exclusively.

40. A lock, embodying in combination a plurality of substantially similar coperat ing tumblers, a means whereby one of said tumblers is directly manually operatable and the others being operatable through the medium of said means, a bolt, a locking dog on thc bolt manually engageable with said manually operatablc tumbler exclusively, an

unlocking dog on the bolt engageable with all the tumblers, said locking and unlocking dogs being normally out of operative relation to the tumblers, a latch, and latch operating means engageable with the manually operatable tumbler exclusively.

4:1. A lock, embodying a permutation mechanism and a tumbler cooperating therewith, a bolt, a latch, means connected with the bolt whereby the bolt may be thrown out by operation of the tumbler and withdrawn by operation of the tumbler under control of the permutation mechanism, and means connected with the latch whereby the latch may be operated by movement of the tumbler.

In witness that I claim the foregoing I have hereunto subscribed my name this 20th day of October, 1916.

ERNEST GARFIELD ELDRIDGE.

Vfitness:

JAMES T. BARKELEW.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, D. C. 

